Opis

Remark.- In the Late Devonian species, S0 (tr) elements shape is the most diagnostic, with their external surface flat, very strongly concave or raised. The Frasnian species differ from each other also in orientation of denticles.

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 2002. Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland. Acta Palaeontologica Polonica 47 (4): 565-650